Audio Systems: mp3 or ipod in a ford taurus, ford taurus, tape player

Question
Hi, I have a ford taurus(2000, sel)initially i wanted to buy a cd changer but i changed my mind now i want to mp3 player or an Ipod , is it possible to connect the mp3 or the ipod to my car and hear the music throught the speakers of the car?, if it is could you please tell me what type of accesories i have to buy?, and which will be easier to install a regular mp3 player or an ipod?

Answer
Yes, it is VERY possible to have an MP3 player connected to your car (I consider an ipod to be just another MP3 player, albeit a very good one).

What kind of "Head Unit" (tape player, CD player, or AM/FM tuner) do you have currently installed in your car?  Do you have any prior experience with car electrical systems and soldering wires (or would you rather keep this simple, cheap, and easy)?